Water-closet tank.



No. 686,592. Patented Nov. i2, |9ol. .1. J. G. CROSBY.

WATER CLOSET TANK.

UNITED v STATES PATENT OFFICE. v

JOSEPH J. G. CROSBY, OF NORTHVILLE, MICHIGAN.

.VWATER-CLOSET TANK.

SPECIFICATION fog part 0f Letters Patent No.y 686,592, dated November 12, 1901.

Application led December 22, 1900. Serial No. 40,718. (No model.)

To all whom ir) may concern:

Be it known that I, JOSEPH J. G. CROSBY, a subject of the Queen of Great Britain, residing at Northville, county of Wayne, State of Michigamhave Vinvented a certain new and useful Improvement in Water-Closet Tanks; and I declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention has for its object certain new and useful improvement-s in a water-closet tank; and it consists of the structure, combination, and arrangement of devices hereinafter described and claimed and illustrated in the accompanying drawings, in which-.-

Figure l is an edge view of a continuous board prepared to be bent around the end pieces shown engaged therewith. Fig. 2 is an interior face view or elevation of the same. Fig. 3 is a horizontal cross-,section of a completed tank. Fig. 4 is avertical cross-section of a completed tank, showing a portion broken away.

My invention is designed to provide an improved water-closet tank of'superior efficiency employing a continuous board bent to form three sides of a tank, having interior rectangular corners, the other side and the bottom so engaged with the adjacent parts as to allow for contraction and expansion.

I carry out my invention as follows In the drawings, A of Figs. l and 2 represents a continuous board from which three walls of the tank are constructed, said board forming one longitudinal side (indicated at A) and two end portions (indicated at A2A2) when the board has been bent into proper shape.

The board A is grooved or recessed, as indicated at a a, at suitable points to form two corners of the tank when the board is bent into desired shape, into which grooves bindingstrips B B are engaged, said strips being curved on one side and formed of rectangular shape on the other side, as indicated at b. In the process of bending the board A to form the three sides of the tank the board is bent around said end pieces or strips B B', said end pieces or strips being in place in the corresponding recesses'ct, while the board A is thusbent thereabout. When bent, the adjacent portions of the board A are, closely itted about the inner rounded surface of said Vend pieces or strips, the rectangular portion b of said strips forming corresponding rectangular corners on the inside of the tank. The upright corner-pieces are made narrower than the normal width of the corresponding groove a, as shown in the drawings in Fig. l, giving room for the bending of the walls thereabout. The ends of the board A are rabbeted, as indicated at ar, to receive a back wall C.

Dis the bottom of the tank, which I prefer to engage with the walls A' A2 A2 by means of angle-irons, (indicated by the numeral 1,) the base of the angle-irons being countersunk into the bottom board D, as indicated bythe numeral 2 in Fig. 4. The upper end of said angle-irons is formed with a hook or liange 3 to engage in a corresponding groove 4 or recess 5 in the adjacent wall, the grooves 4 being preferably longer than the width of said angle-irons, so as to allow for contraction and expansion. The wall C preferably terminates at a little distance from the base D, as indicated at cin Fig. 4, to allow also o f eX- pansion and contraction.

The base of the walls AA2 A2is constructed to form an offset, as indicated at 6, Fig.' 4, to allow of expansion and contraction without marring the appearance of the tank.

It will be understood that the tank is designed to inclose a suitable metal tank and the square corners greatly facilitate the construction and the economy thereof, as asq'uare metal tank can be more economically formed than one with rounded or curved corners. As already described, the outwardly-rounded corners of the walls A A2 A2 are formed around the upright pieces B. It will be evident that by making the three Walls of the tank of one continuous piece of wood I avoid end joints common to other tanks of this description. By constructing the tank to allow thus of expansion and contraction I thereby provide for the prevention of the splitting and warping of the tank.

What I claim as my invention is-v ICO l. A water-closet tank formed with square Y tinuous piece of wood formed with vertical grooves and having in combination therewith upright corner-pieces engaged in said grooves, said corner-pieces made narrower than the normal width of the grooves and each formed with a rectangular groove upon theinner face thereof, said walls bent to inclose the adjacent faces of the corner-pieces, and thereby forming rectangular corners within the tank, a tank-bottom, and angle-irons connecting the tank-bottom with said walls, said walls formed with laterally-elongated grooves to allow for the lateral contraction and expansion of the tank-bottom, and said angle-irons with flanges to enter said grooves, said angle-irons set into the bottom and side walls flush with the inner surfaces thereof.

2. A water-closet tank formed with square interior corners having three of its walls made of a continuous piece of wood formed with vertical grooves, and having in combination therewith upright corner-pieces engaged in said grooves, said corner-pieces made narrower than the normal width of the grooves and formed with a rectangular groove upon one face thereof, said walls bent around said corner-pieces and forming corresponding rectangular corners Within the tank, a bottom, angle-irons connecting the bottom with said walls, and a back wall having a rabbeted engagement with the end walls of the tank and separated at the base thereof from the bottom of the tank, said walls formed with latcrallyelongated grooves to allow for the lateral contraction and expansion of the tankbottom, and said angle-irons with fianges to enter said grooves, said angle-irons set into the bottom and side walls flush with the inner surfaces thereof.

3. A water-closet tank formed with square interior corners having three of its walls made of a continuous piece of wood formed with vertical grooves, and in combination therewith upright corner-pieces engaged in said grooves, said corner-pieces formed with a rectangular groove upon one face thereof, a bottom, angle-irons connecting the bottom with the walls, and a back wall having a rabbeted engagement with the end walls of the tank and separated at the base thereof from the bottom of the tank to allow for expansion and contraction, the lower edges of the front and end walls projecting outside the adjacent edges of the base to allow for expansion and contraction without lnarring the appearance of the tank, said walls formed with laterallyelongated grooves to allow for the lateral contraction and expansion of the tank-bottom, and said angle-irons constructed with lian ges to enter said grooves, said angle-irons set into the bottom and side walls of the tank flush with the inner surfaces thereof.

In testimony whereof I sign this specification in the presence of two witnesses.

JOSEPH J. G. CROSBY.

Witnesses:

FRANCIS R. BEAL, W. E. AMBLER. 

